Side by side

Serica Ref. 5303 Diving ChronometervsGrand Seiko SBGH263

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
SBGH263
Grand SeikoSBGH263
MSRP $6,200

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
SBGH26339.5mm
Power Reserve
Ref. 5303 Diving Chronometer42h
SBGH26355h
Water Resistance
Ref. 5303 Diving Chronometer300m
SBGH26330m
MSRP
Ref. 5303 Diving Chronometer$1,768
SBGH263$6,200

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39mm
39.5mm
Thickness
12.2mm
13.1mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
19mm
Water Resistance
300m
30m

Crystal & Dial

2 specs
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
9S85
Power Reserve
42h
55h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$6,200

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

Grand Seiko SBGH263

The Grand Seiko SBGH263 is praised for its excellent finishing for the price, with reviewers comparing it to Jaeger-LeCoultre. Owners and reviewers highlight the stunning 'Shironeri' dial and gold hands/numerals, and the 39.5mm case size is considered a perfect fit, referencing vintage Grand Seiko models. The watch features a 55-hour power reserve from its 36,000 BPH movement, though one reviewer felt the date aperture was unnecessary. On balance, owners and reviewers rate the Grand Seiko SBGH263 highly for its exceptional dial and finishing at its price point.

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